ImmutableClassToInstanceMap.builder()
          // primitives
          .put(Object.class, "")
          .put(Number.class, 0)
          .put(UnsignedInteger.class, UnsignedInteger.ZERO)
          .put(UnsignedLong.class, UnsignedLong.ZERO)
          .put(BigInteger.class, BigInteger.ZERO)
          .put(BigDecimal.class, BigDecimal.ZERO)
          .put(CharSequence.class, "")
          .put(String.class, "")

      ImmutableClassToInstanceMap.builder()
          // primitives
          .put(Object.class, "")
          .put(Number.class, 0)
          .put(UnsignedInteger.class, UnsignedInteger.ZERO)
          .put(UnsignedLong.class, UnsignedLong.ZERO)
          .put(BigInteger.class, BigInteger.ZERO)
          .put(BigDecimal.class, BigDecimal.ZERO)
          .put(CharSequence.class, "")
          .put(String.class, "")

  }

  @Generates
  UnsignedInteger generateUnsignedInteger() {
    return UnsignedInteger.fromIntBits(generateInt());
  }

  @Generates
  UnsignedLong generateUnsignedLong() {
    return UnsignedLong.fromLongBits(generateLong());
  }

  @Generates
  BigInteger generateBigInteger() {
    return BigInteger.valueOf(generateInt());
  }

  @Generates

  }

  @Generates
  UnsignedInteger generateUnsignedInteger() {
    return UnsignedInteger.fromIntBits(generateInt());
  }

  @Generates
  UnsignedLong generateUnsignedLong() {
    return UnsignedLong.fromLongBits(generateLong());
  }

  @Generates
  BigInteger generateBigInteger() {
    return BigInteger.valueOf(generateInt());
  }

  @Generates

            ConstantValueKind.UnsignedInt -> KtConstantValue.KtUnsignedIntConstantValue(value as UInt, psi)
            ConstantValueKind.UnsignedLong -> KtConstantValue.KtUnsignedLongConstantValue(value as ULong, psi)
            ConstantValueKind.UnsignedShort -> KtConstantValue.KtUnsignedShortConstantValue(value as UShort, psi)